Improved car-wheel



W. R. THOMAS.

' Car Wheel.

Patented Aug. 17, 1869.

- Wiznessea- WW W , wait-e11 $121M fiat-wt. (cilia.

Letters Patent No. 93,769, dated August 17, 1869.

, IMPROVED" CAR-WHEEL.

.lfhe Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern v Be it known that I, 7. It. THOMAS, of Oatasauqua, Lehigh county, Pennsylvania, have invented a new and useful Improvement in Oar-W'heels; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the'same, reference being had to the accompanying drawings, forming part of this specification, in which-- Figure 1 represents the inner side of one of my improved car-wheels.

Figure 2 is a cross-section of the same, taken through the line :0 a, fig l.

Figure '3 represents a modification of the same. Figure 4is adetailsection ofthe same, taken through V the line y y, fig. 3.

or concave side is placed a plate, 0, dished or concaved in the opposite direction.

D are radial arms or brackets, which are formed upon the edge of the plate O,'and which are so made as to indenture'the plate B, and serve as braces to the wheel, thus compensating for the expansion and contraction in heating and cooling.

In this case the arms or braces I) serve as arms to the plate 0, and at the same time as brackets to the rim A and plate B. i p

In the modification shown in figs. 3 and 4, the

brackets I) are formed hollow, and solid with the rim A and plate B, and the arms E, of the plate 0, alternat-e' with them, as shown in fig. 3.

Having thus described my invention,

hat I claim as new, and desire to secure by Letters Patent, is-

An improved oar-wheel with a hollow. centre, formed by the combination of the rim A, plate B, plate 0, and anus E, and brackets D, either or both,-and whether the brackets D are made hollow or solid, substantially as herein shown and described, and for the purposes set forth.

To the above specification of my invention signed ,by me, this 19th day of February, 1869.

WVitnesses: J. W. FULLER, Jr.,

R. CLAY HAMERSLY.

\V. B. THOMAS. 

